异型

It contains the largest autosomal block of heterochromatin, which is heteromorphic in 6–8% of humans, whereas pericentric inversions occur in more than 1% of the population.

它具有最大的常染色体异染色质区域，其在6-8％的人群中为异型的，然而中心周围倒位在人群中出现率大于1％。

However, details of the molecular mechanism of hetR and its product in the regulation of heterocyst differentiation and pattern formation were still largely unknown.

但是，目前对于hetR及其表达产物在蓝细菌异型胞分化与格式形成过程中的分子调控机制仍然很不清楚。

Strain PPC 7120 heterocyst differentiation and pattern formation

strain PCC7120异型胞分化与格式形成中分子调控机理的研究

Based on the biochemical analysis of the two proteins in vitro, the results of yeast two-hybrid experiment and protein-interaction in both wild type cells and C48 strain, we conclude HetR can form a homodimer through the Cys48 residue. We also show that the dimerization is required for heterocyst differentiation.

基于体外两种蛋白的性质比较和酵母双杂交的结果，并结合相应蓝细菌野生型和突变株C48A中HetR蛋白性质的体内研究表明：HetR蛋白可以通过第48位半胱氨酸残基形成共价结合的同源二聚体，该同源二聚体是异型胞正常分化所必需的。

Moreover, we have found the pentapeptide RGSGR, which is present at the C terminus of PatS and blocks heterocyst formation, inhibits the DNA-binding of HetR dimer and prevents hetR up-regulation.

另外，位于PatS蛋白C端的五肽RGSGR可以通过抑制HetR同源二聚体的DNA结合活性，阻断hetR的上调表达而影响异型胞的形成过程。

Chromosomal analysis of skin cells from 8 tufted deer were studied by using primary culture and subculture.We found 4 different karyotypes in all and a new karyotype, different with the others studied before, was found. There were 47 chromosomes in somatic cell of the new karyotype, including a pair of heteromorphic X chromosomes, one was telocentric chromosome, the other was subtelocentric chromosome.

采用原代培养和传代培养方法对来自成都动物园的8头毛冠鹿的皮肤细胞进行了染色体研究，结果出现4种不同的核型，有一种核型与以前所报道的几种核型不一致，确定为新核型（2n=47♀，X染色体为异型，）。

The results of the karyotype analysis indicated that the heteromorphic sex chromosomes existed in mitotic prometaphase chromosomes of the early embryos. Zchromosorne was the longest among the total of 56 chromosomes, and usually had twoconstricts at the ...

经对23个分散好、完整的分裂相的分析表明：家蚕早期胚胎有丝分裂早中期染色体中有异型性染色体存在，Z染色体是核型中最长的，通常具有亚端和亚中部次缢痕，W染色体很短，约相当干Z染色体的1／3长。

With this method the homomorphic chromosome pair No.10 in Bufo bufo gargarizans could be identified as sex-specific chromosomes of the ZZ/ZW-type.The Z chromosomes in all male animals replicated synchronously,but Z chromosome and W chromosome of females revealed heteromorphic replication pattern.

用这种方法我们鉴定中华大蟾蜍蜍第10对同型染色体为ZZ/ZW型性染色体，所有雄性动物两个Z染色体的复制型是完全相同的，而雌性动物的Z和W染色体显示出异型复制型。

Results The morbidity seasons of EHF in Guangzhou area distributed evenly. Morbidity between city and rural inhabitants was 1.08: The clinical symptoms in most patients were slight, and had no typical five-stage symptoms of EHF; less incidence of increased total-WBC number and heteromorphic lymphocytes was recorded, as well as more incidence of decreased platelets. Most patients had abnormal results in routine urine examination, mainly presented as positive in urinary protein, and had damages in multiple organs such as kidney, liver and myocardium. Most cases were slight or moderate.

结果 广州地区EHF的发病季节呈平均分布，城市居民与农村居民发病率之比为1.08：1；多数患者临床症状较轻，很少出现典型临床5期经过；白细胞升高及异型淋巴细胞增多的发生率较低，血小板降低发生率较高；尿常规异常发生率高，以尿蛋白阳性为主；器官损害发生率高，以肾脏、肝脏、心肌损害多见；轻型及中型病例多，重型、危重型病例较少。

Malignant cells, according to their degree of differentiation showed different heteromorphism.

恶性肿瘤细胞根据其分化的程度表现出不同的异型性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。